Home / 83,416.55-115,102.09-47,609.15

Finding the Fourth Proportional to 83,416.55, 115,102.09 and 47,609.15

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Solution

The fourth proportional to 83,416.55, 115,102.09 and 47,609.15 is: 65,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,416.55 : 115,102.09 = 47,609.15 : x
  2. Step 2: Convert to fraction form
    83,416.55/115,102.09 = 47,609.15/x
  3. Step 3: Cross multiply
    83,416.55x = 115,102.09 × 47,609.15
  4. Step 4: Simplify right side
    83,416.55x = 5,479,912,668.12
  5. Step 5: Solve for x
    x = 5,479,912,668.12/83,416.55
  6. Step 6: Final answer
    x = 65,693.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.